1NTO

N249Y MUTANT OF ALCOHOL DEHYDROGENASE FROM THE ARCHAEON SULFOLOBUS SOLFATARICUS-MONOCLINIC CRYSTAL FORM

PDB DOI: https://doi.org/10.2210/pdb1NTO/pdb

Classification: OXIDOREDUCTASE
Organism(s): Saccharolobus solfataricus
Expression System: Escherichia coli
Mutation(s): Yes

Deposited: 2003-01-30 Released: 2003-08-26
Deposition Author(s): Esposito, L., Bruno, I., Sica, F., Raia, C.A., Giordano, A., Rossi, M., Mazzarella, L., Zagari, A.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.94 Å
R-Value Free: 0.244
R-Value Work: 0.210
R-Value Observed: 0.211

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

This is version 1.4 of the entry. See complete history.

Literature

Structural study of a single-point mutant of Sulfolobus solfataricus alcohol dehydrogenase with enhanced activity.

Esposito, L., Bruno, I., Sica, F., Raia, C.A., Giordano, A., Rossi, M., Mazzarella, L., Zagari, A.

(2003) FEBS Lett 539: 14-18

PubMed: 12650918 Search on PubMed
DOI: https://doi.org/10.1016/s0014-5793(03)00173-x
Primary Citation of Related Structures:
1NTO, 1NVG

PubMed Abstract:
Alcohol dehydrogenase from Sulfolobus solfataricus (SsADH) is the only enzyme from Archaea among the structurally studied members of the medium-chain ADH family described so far. Here, we present the three-dimensional structure of the apo form of the mutant N249Y which exhibits increased catalytic activity when compared to the wild-type enzyme. The substitution, located in the coenzyme binding domain, decreases the affinity for NAD(H) cofactor. The rearrangement of segments 248-250 and 270-275, induced by the mutation, suggests an explanation for the lower coenzyme affinity. This study also highlights the role in SsADH catalysis of the flexible loops located at the interface between the catalytic and the coenzyme domains.

Organizational Affiliation

Istituto di Biostrutture e Bioimmagini, CNR, via Mezzocannone 6-8, I-80134 Naples, Italy.

Macromolecule Content

Total Structure Weight: 226.77 kDa
Atom Count: 16,354
Modelled Residue Count: 2,082
Deposited Residue Count: 2,082
Unique protein chains: 1

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
NAD-dependent alcohol dehydrogenase	A B C D E A, B, C, D, E, F [auth H]	347	Saccharolobus solfataricus	Mutation(s): 1 Gene Names: ADH EC: 1.1.1.1
UniProt
Find proteins for P39462 (Saccharolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2)) Explore P39462 Go to UniProtKB: P39462
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P39462
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
ZN Query on ZN Download Ideal Coordinates CCD File SDF format, chain G [auth A] SDF format, chain H [auth A] SDF format, chain I [auth B] SDF format, chain J [auth B] SDF format, chain K [auth C] SDF format, chain L [auth C] SDF format, chain M [auth D] SDF format, chain N [auth D] SDF format, chain O [auth E] SDF format, chain P [auth E] SDF format, chain Q [auth H] SDF format, chain R [auth H] MOL2 format, chain G [auth A] MOL2 format, chain H [auth A] MOL2 format, chain I [auth B] MOL2 format, chain J [auth B] MOL2 format, chain K [auth C] MOL2 format, chain L [auth C] MOL2 format, chain M [auth D] MOL2 format, chain N [auth D] MOL2 format, chain O [auth E] MOL2 format, chain P [auth E] MOL2 format, chain Q [auth H] MOL2 format, chain R [auth H] mmCIF format, chain G [auth A] mmCIF format, chain H [auth A] mmCIF format, chain I [auth B] mmCIF format, chain J [auth B] mmCIF format, chain K [auth C] mmCIF format, chain L [auth C] mmCIF format, chain M [auth D] mmCIF format, chain N [auth D] mmCIF format, chain O [auth E] mmCIF format, chain P [auth E] mmCIF format, chain Q [auth H] mmCIF format, chain R [auth H]	G [auth A] H [auth A] I [auth B] J [auth B] K [auth C] G [auth A], H [auth A], I [auth B], J [auth B], K [auth C], L [auth C], M [auth D], N [auth D], O [auth E], P [auth E], Q [auth H], R [auth H]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N		Interactions Focus chain G [auth A] Focus chain H [auth A] Focus chain I [auth B] Focus chain J [auth B] Focus chain K [auth C] Focus chain L [auth C] Focus chain M [auth D] Focus chain N [auth D] Focus chain O [auth E] Focus chain P [auth E] Focus chain Q [auth H] Focus chain R [auth H]